Scientists & Staff

Jennifer Koch

Research Biologist
359 Main Road
Delaware, OH, 43015
Phone: 740-368-0188

Contact Jennifer Koch


Featured Publications & Products

  • Mason, Mary E.; Herms, Daniel A.; Carey, David W.; Knight, Kathleen S.; Faridi, Nurul I.; Koch, Jennifer. 2011. Update on exotic ash collection for hybrid breeding and survey for EAB-resistance in native North American species. In: McManus, Katherine A; Gottschalk, Kurt W., eds. 2010. Proceedings. 21st U.S. Department of Agriculture interagency research forum on invasive species 2010; 2010 January 12-15; Annapolis, MD. Gen. Tech. Rep. NRS-P-75. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 104.
  • Koch, Jennifer L.; Carey, David W.; Mason, Mary E.; Nelson, C. Dana; Barakat, Abdelali; Carlson, John E.; Neale, David. 2011. Development of molecular tools for use in beech bark disease management. In: McManus, Katherine A; Gottschalk, Kurt W., eds. 2010. Proceedings. 21st U.S. Department of Agriculture interagency research forum on invasive species 2010; 2010 January 12-15; Annapolis, MD. Gen. Tech. Rep. NRS-P-75. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 38-40.
  • Mason, Mary E.; Krasowski, Marek; Loo, Judy; Koch, Jennifer. 2011. Comparison of protein profiles of beech bark disease-resistant or beech bark disease-susceptible American beech. In: McManus, Katherine A; Gottschalk, Kurt W., eds. 2010. Proceedings. 21st U.S. Department of Agriculture interagency research forum on invasive species 2010; 2010 January 12-15; Annapolis, MD. Gen. Tech. Rep. NRS-P-75. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 105.
  • Koch, Jennifer L.; Mason, Mary E.; Carey, David W.; Knight, Kathleen; Poland, Therese; Herms, Daniel A. 2010. Survey for tolerance to emerald ash borer within North American ash species. In: Michler, Charles H.; Ginzel, Matthew D., eds. 2010. Proceedings of symposium on ash in North America; 2010 March 9-11; West Lafayette, IN. Gen. Tech. Rep. NRS-P-72. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 60.
  • Koch, Jennifer L.; Carey, David W.; Mason, Mary E.; Islam-Faridi, M. Nurul. 2010. Overcoming obstacles to interspecies hybridization of ash. In: Michler, Charles H.; Ginzel, Matthew D., eds. 2010. Proceedings of symposium on ash in North America; 2010 March 9-11; West Lafayette, IN. Gen. Tech. Rep. NRS-P-72. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 41-44.

Publications & Products

National Research Highlights

 Summer research assistants Joe Becker and Andrew Wade help take care of the thousands of ash trees and seedlings that are part of the breeding program at the Northern Research Station in Delaware, OH. Jennifer Koch, U.S. Department of Agriculture Forest Service.

The Key to Rescuing Green Ash from Emerald Ash Borer is in the Genes

Year: 2016

Hundreds of genes in lingering ash trees have been identified that may help researchers understand the defense responses they use to defend themselves against emerald ash borer (EAB). Lingering ash and the genes they possess that help them combat EAB hold the key to saving green ash from extinction.

Interns put EAB eggs on trees: Summer interns set up bioassay experiment by taping EAB eggs to test trees. USDA Forest Service

Green Ash Trees That Survive Beetle Infestation Pass on Their Resistance Through Propagation and Planting

Year: 2015

Among the tens of millions of trees killed by the emerald ash borer (EAB), researchers have found a small number of trees that survived their assault. Tests show that these surviving ash trees are more resistant to EAB than their counterparts. Breeding these select trees may produce trees with an even greater ability to survive EAB infestation and will provide seedlings to restore ash in areas destroyed by EAB.

Photo taken with a 40 X dissecting microscope at the Delaware, Ohio, research facility eight weeks after EAB egg hatch in September 2014.  In the center of the light colored tissue is a small dark, oblong-shaped emeral ash borer larva that failed to survive in the ash host tree, a possible indication that the tree may be resistant to the beetle. David W. Carey, USDA Forest Service

Researchers From the U.S. Forest Service and the United Kingdom Join Forces To Save Ash Trees Facing Intercontinental Threats

Year: 2014

Ash trees across Europe are currently under attack by a fungal disease known as ash dieback disease, while here in the United States, they are being killed by the emerald ash borer at an unprecedented rate. In today's global economy there is risk that these ash menaces could cross the Atlantic Ocean and become a dual threat, causing the complete devastation of ash resources on both continents. Forest Service researchers are part of an international team that was recently awarded over 1.2 million dollars by the United Kingdom's Tree Health and Biosecurity Initiative to pioneer the application of a new method for finding genes that are responsible for pest and pathogen resistance in trees.

Last modified: Tuesday, December 12, 2017